adjective. That travels too quickly; that exceeds a speed limit.

Is there such a word as overspeeding?

Most at times, when people say overspeeding they mean to say driving above the speed limit as allowed by law, but that is not the right word to use. When one drives above the speed limit, we say the person is speeding not overspeeding.

Is overspeed a verb?

verb. 1To travel too quickly, especially to travel faster than permitted by law or by another authority.